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Figure 1 | Geochemical Transactions

Figure 1

From: Cell–cell and cell–surface interactions in an illuminated biofilm: Implications for marine sediment stabilization†

Figure 1

Substratum-attached material ("footpads") remaining after treatment of A. coffeaeformis with EGTA. The footpads are soluble in hot bicarbonate solution and are stained here with Concanavalin A conjugated to fluorescein isothiocyanate (100 μgmL-1, Sigma Chemical Co.). Red autofluorescence of the diatom chloroplast is seen above the footpads when diatoms were not removed from the substratum.

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